Abstract:
BACKGROUND:The platelet to lymphocyte ratio (PLR), an indirect inflammatory biomarker, has been recently demonstrated to be associated with severity of coronary artery disease. In the present study, we sought to investigate whether PLR is associated with vulnerable plaque characteristics of non-culprit lesions in patients with acute coronary syndrome (ACS). METHODS:The patients in our study were divided into two groups (high PLR group and low PLR group). A total of 119 non-culprit plaques from 71 patients with ACS were assessed by optical coherence tomography (OCT). RESULTS:The non-culprit plaques in high PLR group exhibited thinner fibrous cap thickness (FCT) (88.60 ± 44.70 vs. 119.28 ± 50.22 μm, P = 0.001), greater maximum lipid arc (271.73 ± 71.66 vs. 240.60 ± 76.69°, P = 0.027) and increased incidence of thin-cap fibroatheroma (TCFA) (34.0% vs. 15.9%, P = 0.022) compared with those in low PLR group. Meanwhile, PLR was negatively associated with FCT (r = -0.329, P < 0.001). Furthermore, multivariate regression analysis showed that PLR [OR: 1.023 (95% CI: 1.005-1.041), P = 0.012] and LDL-C [OR: 1.892 (95% CI: 1.106-3.239), P = 0.020] were significant predictors of TCFA. CONCLUSIONS:High level of PLR may be associated with vulnerable plaque features of non-culprit lesions in patients with ACS. PLR, a cheap and easily available index, may surve as a useful inflammatory marker in reflecting plaque vulnerability.
journal_name
BMC Cardiovasc Disordjournal_title
BMC cardiovascular disordersauthors
Wang X,Xie Z,Liu X,Huang X,Lin J,Huang D,Yu B,Hou Jdoi
10.1186/s12872-017-0618-ysubject
Has Abstractpub_date
2017-07-03 00:00:00pages
175issue
1issn
1471-2261pii
10.1186/s12872-017-0618-yjournal_volume
17pub_type
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